/*
 * Copyright (C) 2003-2008 eXo Platform SAS.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 */
package org.exoplatform.faq.webui.popup;

import java.util.ArrayList;
import java.util.List;

import org.exoplatform.faq.service.Category;
import org.exoplatform.faq.service.FAQService;
import org.exoplatform.faq.service.JCRPageList;
import org.exoplatform.faq.service.QuestionPageList;
import org.exoplatform.faq.webui.FAQUtils;
import org.exoplatform.faq.webui.UIAnswersContainer;
import org.exoplatform.faq.webui.UIAnswersPageIterator;
import org.exoplatform.faq.webui.UIAnswersPortlet;
import org.exoplatform.faq.webui.UIBreadcumbs;
import org.exoplatform.faq.webui.UICategories;
import org.exoplatform.faq.webui.UIQuestions;
import org.exoplatform.ks.common.webui.BaseUIForm;
import org.exoplatform.webui.config.annotation.ComponentConfig;
import org.exoplatform.webui.config.annotation.EventConfig;
import org.exoplatform.webui.core.UIPopupComponent;
import org.exoplatform.webui.core.lifecycle.UIFormLifecycle;
import org.exoplatform.webui.event.Event;
import org.exoplatform.webui.event.EventListener;

/**
 * Created by The eXo Platform SARL
 * Author : Truong Nguyen 
 *          truong.nguyen@exoplatform.com 
 * May 5, 2008, 2:26:57 PM
 */
@ComponentConfig(
    lifecycle = UIFormLifecycle.class, 
    template = "app:/templates/faq/webui/popup/ResultSearchCategory.gtmpl", 
    events = {
        @EventConfig(listeners = ResultSearchCategory.LinkActionListener.class), 
        @EventConfig(listeners = ResultSearchCategory.CloseActionListener.class) 
    }
)
public class ResultSearchCategory extends BaseUIForm implements UIPopupComponent {
  private List<Category>        listCategory_      = null;

  private String                LIST_RESULT_SEARCH = "listResultCategoriesSearch";

  private UIAnswersPageIterator pageIterator;

  private JCRPageList           pageList;

  public ResultSearchCategory() throws Exception {
    addChild(UIAnswersPageIterator.class, null, LIST_RESULT_SEARCH);
  }

  @SuppressWarnings("unused")
  private List<Category> getListCategory() {
    long pageSelected = pageIterator.getPageSelected();
    listCategory_ = new ArrayList<Category>();
    try {
      listCategory_.addAll(pageList.getPageResultCategoriesSearch(pageSelected, FAQUtils.getCurrentUser()));
    } catch (Exception e) {
      log.error("Fail to get list of category: ", e);
    }
    return listCategory_;
  }

  public void setListCategory(List<Category> listCategory) {
    this.listCategory_ = listCategory;
    try {
      pageList = new QuestionPageList(listCategory);
      pageList.setPageSize(5);
      pageIterator = this.getChildById(LIST_RESULT_SEARCH);
      pageIterator.updatePageList(pageList);
    } catch (Exception e) {
      log.error("Fail to set a list of category: ", e);
    }
  }

  @SuppressWarnings("unused")
  private long getTotalpages(String pageInteratorId) {
    UIAnswersPageIterator pageIterator = this.getChildById(LIST_RESULT_SEARCH);
    try {
      return pageIterator.getInfoPage().get(3);
    } catch (Exception e) {
      log.debug("getting total page fail: ", e);
      return 1;
    }
  }

  public void activate() throws Exception {
  }

  public void deActivate() throws Exception {
  }

  static public class LinkActionListener extends EventListener<ResultSearchCategory> {
    public void execute(Event<ResultSearchCategory> event) throws Exception {
      ResultSearchCategory resultSearch = event.getSource();
      UIAnswersPortlet answerPortlet = resultSearch.getAncestorOfType(UIAnswersPortlet.class);
      String categoryId = event.getRequestContext().getRequestParameter(OBJECTID);
      FAQService faqService = FAQUtils.getFAQService();
      UIQuestions uiQuestions = answerPortlet.findFirstComponentOfType(UIQuestions.class);
      try {
        faqService.isExisting(categoryId);
      } catch (Exception e) {
        resultSearch.warning("UIQuestions.msg.category-id-deleted");
        return;
      }
      uiQuestions.setCategoryId(categoryId);
      uiQuestions.setDefaultLanguage();
      UIBreadcumbs breadcumbs = answerPortlet.findFirstComponentOfType(UIBreadcumbs.class);
      breadcumbs.setUpdataPath(categoryId);

      event.getRequestContext().addUIComponentToUpdateByAjax(breadcumbs);
      UICategories categories = answerPortlet.findFirstComponentOfType(UICategories.class);
      categories.setPathCategory(breadcumbs.getPaths());
      UIAnswersContainer fAQContainer = uiQuestions.getAncestorOfType(UIAnswersContainer.class);
      event.getRequestContext().addUIComponentToUpdateByAjax(fAQContainer);
      answerPortlet.cancelAction();
    }
  }

  static public class CloseActionListener extends EventListener<ResultSearchCategory> {
    public void execute(Event<ResultSearchCategory> event) throws Exception {
      UIAnswersPortlet answerPortlet = event.getSource().getAncestorOfType(UIAnswersPortlet.class);
      answerPortlet.cancelAction();
    }
  }
}